1-(3-Amino-1H-pyrazol-1-yl)-2-chloroethanone CAS 155347-67-4

Purity 97%+In StockPharmaceutical Standards
CAS No.155347-67-4
Molecular FormulaC5H6ClN3O
Molecular Weight159.57 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-(3-Amino-1H-pyrazol-1-yl)-2-chloroethanone CAS 155347-67-4 chemical structure

Description

The occurrence of 1-(3-Amino-1H-pyrazol-1-yl)-2-chloroethanone is closely related to an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 1-(3-Amino-1H-pyrazol-1-yl)-2-chloroethanone (CAS 155347-67-4), a certified reference material (molecular formula C5H6ClN3O, MW 159.57 g/mol) for analytical method development and quality control.

Based on its molecular formula C5H6ClN3O, 1-(3-Amino-1H-pyrazol-1-yl)-2-chloroethanone contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 159.57 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC5H6ClN3O
Molecular Weight159.57 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)2001
Halogen ContentCl-containing
Nitrogen Atoms3

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